Yamaha R15 2022 Service Manual page 402

FUEL INJECTION SYSTEM TROUBLESHOOTING
Fault code No.
Item
4 Wire harness continuity.
5 Malfunction in ECU.
6 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0335
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of crankshaft posi-
tion sensor coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
2 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins).
P0201
Fuel injector: malfunction in fuel injector.
Open or short circuit → Replace
the wire harness.
Between fuel injector coupler
and ECU coupler.
orange/black–orange/black
Between fuel injector coupler
and right handlebar switch cou-
pler.
red/white-red/white
Between right handlebar switch
coupler and main switch cou-
pler.
brown-brown
Replace the ECU.
Start the engine and let it idle for
approximately 5 seconds.
Confirm that the fault code has
a condition of "Recover" using
the malfunction mode of the
YDT, and then delete the fault
code.
P0335
Crankshaft position sensor: normal signals are not received from
the crankshaft position sensor.
Unable to start engine
Unable to drive vehicle
—
—
—
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-69
ELEC
Execute the diagnostic mode.
(Code No. 36)
Operating sound → Go to item
6.
No operating sound → Go to
item 5.
Service is finished.
Confirmation of service com-
pletion
Crank the engine, and then
check the fault code using the
malfunction mode of the YDT.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 2.
Crank the engine, and then
check the fault code using the
malfunction mode of the YDT.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 3.
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